Prediction of blood lead by HPLC assay of erythrocyte pyrimidine 5'-nucleotidase.

Prediction of blood lead by HPLC assay of erythrocyte pyrimidine 5'-nucleotidase.
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通过红细胞嘧啶 5-核苷酸酶的 HPLC 测定预测血铅。

DOI:
10.1093/jat/11.1.39
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发表时间:
1987
影响因子:
2.5
通讯作者:
Stohs,SJ
Stohs,SJ
中科院分区:
医学3区
文献类型:
--
作者:
Cook,LR;Angle,CR;Kubitschek,CE;Stohs,SJ

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相似文献

本文介绍了红细胞嘧啶5′-核苷酸酶(P5 N)的简化制备方法,并与血铅进行了相关性分析。将洗涤但未过滤的红细胞与尿苷一磷酸(UMP)孵育,并通过高效液相色谱法(HPLC)测定释放的尿苷量。20例正常人未过滤红细胞的尿激酶活性为12.4 ± 2.4单位,与文献报道的不同制备条件和P5 N测定结果相当。在20名铅暴露的成年人和20名对照者中,通过红细胞UMB 2预测的血铅(PbB)回归系数为PbB = 4.77 - 0.22 UMB 2; r2= 0.61。如果尿铅≤ 7.6个单位(平均值,2.0 SD)被认为异常,则预测血铅≥ 40 Ég/dL的灵敏度为80%。特异性,血铅< 40 µg/dL的受试者中UMMs> 7.6单位的百分比为96%。广泛使用P5 N,测量为UMB 10,被认为是血铅的生物学相关性。
A simplified preparation of erythrocytes (rbc) for rbc pyrimidine 5′-nucleotidase (P5N) is described and correlated with blood lead. Washed but unfiltered rbc are incubated with uridine monophosphate (UMP) and the amount of uridine liberated is measured by high performance liquid chromatography (HPLC). UMPase activity of unfiltered rbc of 20 normal subjects was 12.4 ± 2.4 units, comparable to reported data obtained under varying conditions of preparation and P5N assay. In 20 lead-exposed adults and 20 controls, the regression coefficient for blood lead (PbB) predicted by rbc UMPase was in PbB = 4.77 − 0.22 UMPase; r2= .61. If UMPase ≤ 7.6 units (mean, 2.0 SD) is considered abnormal, sensitivity for prediction of a blood lead ≥ 40 Ég/dL is 80%. Specificity, the percent of subjects with a UMPase > 7.6 units who had a blood lead < 40 µg/dL, was 96%. Wider utilization of P5N, measured as UMPase, is proposed as a biologic correlate of blood lead.
使用高效液相色谱法测定人红细胞和血浆中的 5-核苷酸酶活性。
DOI: 10.1016/s0021-9673(00)82031-2
发表时间: 1982
期刊: Journal of chromatography
影响因子: --
作者:
T. Sakai;S. Yanagihara;K. Ushio
通讯作者: K. Ushio
[日本受试者的正常嘧啶5-核苷酸酶活性水平及其作为血液中低浓度铅的标志物的意义(作者翻译)]。
DOI: 10.1265/jjh.36.518
发表时间: 1981
期刊: Nihon eiseigaku zasshi. Japanese journal of hygiene
影响因子: --
作者:
Y. Sato;T. Sasaki;N. Taniguchi;K. Saito
通讯作者: K. Saito
一种测定人红细胞嘧啶5-核苷酸酶活性的改进方法。
DOI: 10.1016/0009-8981(78)90155-9
发表时间: 1978
期刊: Clinica chimica acta; international journal of clinical chemistry
影响因子: --
作者:
P. H. Ellims;Lorraine Bailey;M. Weyden
通讯作者: M. Weyden
嘧啶-5-核苷酸酶的简单快速放射测定。
DOI: --
发表时间: 1977
期刊: Journal of Laboratory and Clinical Medicine
影响因子: --
作者:
J. Torrance;C. West;E. Beutler
通讯作者: E. Beutler
红细胞嘧啶 5-核苷酸酶和铅中毒。
DOI: 10.1016/0009-8981(78)90056-6
发表时间: 1978
期刊: Clinica chimica acta; international journal of clinical chemistry
影响因子: --
作者:
H. Buc;J. Kaplan
通讯作者: J. Kaplan